This interactive resource provides video clips of actual earthquakes to help students better understand the Richter scale and the Mercalli Intensity Scale.
This interactive resource provides background information about the powerful forces that shape our world. The tutorial includes descriptions of the layers of the Earth, what causes earthquakes and volcanic eruptions, how glaciers shape the land, and the theory of plate tectonics.
This content resource builds students' knowledge and conceptual understanding about plants through interactive activities, printable worksheets, and hands-on explorations. There are six investigation cases for students to complete; each case examines a different aspect of plant life, including plant structures, life cycles and reproduction, proper environmental conditions for growth, and ecological importance. Supplemental background information and a teacher's guide with suggestions for using the materials in the classroom are also provided. A Spanish version of the web site is available.
This interactive resource provides a map of the United States, with geologic regions of importance labeled. The labels can be clicked on and a description of how that geologic region was formed/created is given.